I can't directly contradict a survey especially if it is from a reputable source. I can only say Juan hit on a problem that has seen less, not more antenna usage, in Tampa outskirts and I bet Ct, digital. I had to go to great lengths using experience to get all the OTA stations here when they went to digital. In Ct I gave up, with no hope to get two to three of the locals. (ABC, CW, Fox iffy) Before digital we got them all, plus two stations from Springfield Mass, and one from Providence RI. No more.
I see many antennas that obviously are no longer being used here in Fl where I live. Either no coax connected, or it is hanging, or the antenna is facing the wrong way long neglected. You can probably find posts from a few years ago where I said how many older people did not have cable and used an antenna only here. I bet that has changed for many now. I do think there has to be more people using antennas where they are effective since so many have dropped cable in favor of streaming so that they can get the locals. Networks are still the most watched.